In this section, we introduce the Blockformer. As shown in Figure 2, the proposed model is built upon the typical Attention-Based Encoder-Decoders (AEDs). The Blockformer encoder uses the Conformer block, and the decoder uses the Transformer block. The conformer block we used is the same as [1]}. In the transformer block, we use the relative positional encoding instead of the absolute positional encoding. Block ensemble is proposed in this paper, which is used in encoder and decoder respectively. Moreover, we implement two Block ensemble methods. It will be described in detail below.
